pd1

$s = @'
$p12 = 'abc';
$pro=New-Object System.Diag.Pr;
$pro.Start = $false;
$pro.Start.Red = $true; $s="hello"; $s1="world"; $s2="china"
for ($x = 1; $x -lt 10; $x = $x + 1)
{
        echo $x
        $s="word"
}
$arr = "Red", "Orange", "Green", "White", "Blue", "Indigo", "black", "Violet"
for ($ii = 0; $ii -lt $arr.Length; $ii++)
{
        $arr[$ii]
}
'@
$reg=[regex]"\$[a-zA-Z0-9_]+"
$reg.Matches($s)|select -Unique |?{$_.Value -ne '$false' -and $_.Value -ne '$true'}|%{$_.Value}
复制代码

pd1

回复 3# 5i365


    所以举例子就要全面一点啊，用=也不一定吧  后面可以直接接管道符|的，没有=

pd1

回复 7# 5i365


    $a=dir *.txt;foreach($b in $a){write-host "前面是不是有个变量出不来"}